Specifications

6
Additional precautions
To avoid damage to the controller, use appropriate tools to install,
inspect, or repair the controller.
To avoid damage to the controller, do not overtighten the screws.
This controller is designed for exclusive use with the Building
Management System by Mitsubishi Electric. The use of this
controller for with other systems or for other purposes may cause
malfunctions.
Take appropriate measures against electrical noise interference
when installing the air conditioners in hospitals or facilities with
radio communication capabilities.
Inverter, high-frequency medical, or wireless communication
equipment as well as power generators may cause the air
conditioning system to malfunction. Air conditioning system may
also adversely affect the operation of these types of equipment by
creating electrical noise.
To avoid malfunctions, do not bundle power cables and signal
cables together, or place them in the same metallic conduit.
To reduce the risk of electric shock, install and wire the unit with the
power to the PAC-SC51KUA power supply unit turned off.
To avoid causing damage or fire, do not apply an AC voltage or a
voltage higher than 32 VDC to the M-NET or the power supply (24
VDC) terminal blocks on the controller.
To avoid damage to the controller, do not make holes on the
controller cover.
Do not use solderless terminals to connect cables to the terminal
block. Solderless terminals may come in contact with the circuit
board and cause malfunctions.
To avoid deformation and malfunction, do not install the controller in
direct sunlight or where the ambient temperature may exceed 55°C
(131°F) or drop below -10°C (14°F).
Do not install the controller on the panel door of the metal control
box.
Vibrations or shocks to the controller may damage the controller or
cause the controller to fall.
To prevent unauthorized access, always use a security device such
as a VPN router when connecting to the Internet.